NEWS Doris Webb was diagnosed earlier this year with a rare disease called Familial Mediterranean Fever, a hereditary condition that causes fevers, arthritis attacks, and inflammation of the lining of the lungs and abdomen.

In ATTR-CM, also known as Familial Amyloid Cardiomyopathy (FAC), a 'misfolding' of the protein transthyretin (TTR) causes an accumulation of protein-derived material known as amyloid fibrils in the myocardium.